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A comparison of the cosmic-ray energy scales of Tunka-133 and KASCADE-Grande via their radio extensions Tunka-Rex and LOPES

LOPES Collaboration
Tunka-REX Collaboration; Apel, W.D.; Arteaga-Velázquez, J.C.; Bähren, L.; Bezyazeekov, R.A.; Bekk, K.; Bertaina, M.; Biermann, P.L.; Blümer, J.; Bozdog, H.; Brancus, I.M; Budnev, N.M.; Cantoni, E.; Chiavassa, A.; Daumiller, K.; de Souza, V.; Di Pierro, F.; Doll, P.; Engel, R.; Falcke, H.; ... mehr

Abstract (englisch): The radio technique is a promising method for detection of cosmic-ray air showers of energies around 100 PeV and higher with an array of radio antennas. Since the amplitude of the radio signal can be measured absolutely and increases with the shower energy, radio measurements can be used to determine the air-shower energy on an absolute scale. We show that calibrated measurements of radio detectors operated in coincidence with host experiments measuring air showers based on other techniques can be used for comparing the energy scales of these host experiments. Using two approaches, first via direct amplitude measurements, and second via comparison of measurements with air shower simulations, we compare the energy scales of the air-shower experiments Tunka-133 and KASCADE-Grande, using their radio extensions, Tunka-Rex and LOPES, respectively. Due to the consistent amplitude calibration for Tunka-Rex and LOPES achieved by using the same reference source, this comparison reaches an accuracy of approximately View the MathML source10% - limited by some shortcomings of LOPES, which was a prototype experiment for the digital radio technique for air showers. In particular we show that the energy scales of cosmic-ray measurements by the independently calibrated experiments KASCADE-Grande and Tunka-133 are consistent with each other on this level.

Zugehörige Institution(en) am KIT Institut für Kernphysik (IKP)
Institut für Experimentelle Kernphysik (IEKP)
Institut für Prozessdatenverarbeitung und Elektronik (IPE)
Publikationstyp Zeitschriftenaufsatz
Jahr 2016
Sprache Englisch
Identifikator DOI: 10.1016/j.physletb.2016.10.031
ISSN: 0370-2693, 1873-2445
URN: urn:nbn:de:swb:90-607858
KITopen ID: 1000060785
HGF-Programm 51.03.04; LK 01
Erschienen in Physics letters / B
Band 763
Seiten 179–185
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
Lizenz: Dieses Werk ist lizenziert unter CC BY 3.0 DE
Schlagworte Cosmic rays, Air showers, Radio detection, LOPES, Tunka-Rex, Tunka-133, KASCADE-Grande
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